if you like scenic drives, recommend driving from san francisco to hwy 29n, the rolling green hills and vineyards are as beautiful as any in France, Germany, or Italy , if you sit in the courtyard of the robert mondavi winery you will see as nice a view of the area as there is, the vineyards are right in front of you.

Go north on Highway 101, take the Vallejo Highway 37 exit.  Take a left onto 121 towards Napa, then right on 121/12. You will go through the Carneros area.  Take a left at Highway 29 and you have arrived!  Go north and see more beautiful sights.